The 2015 Mid-Season Invitational was an absolute bloodbath, with 62% more kills per minute than the LCK playoffs and a way faster pace than anyone could have expected, based on how each region’s playoffs played out.
The chart above compares the average Combined Kills per Minute (CKPM) from each major region’s playoffs and the entire Mid-Season Invitational tournament. (The LPL unfortunately can’t be included because the league does not release its match histories publicly.) As an added bonus, I’ve broken out average target selection for each region.